Positions are open for the interested candidates for PhD (UGC/CSIR-JRF) and Postdoc (may be D. S. Kothari Fellowship) may contact directly to ; (Phone 9937760940).
Congratulations!!! Sushil Ranjan Bhatta, selected as CSIR-SRF on 2018-19 batch.
April, 2019: The group welcomes MR. Sreejit Ghosh as a project student under RUSA 2.0
(M. Sc from Delhi University, Delhi).
Dec, 2018 : The group welcomes Ms. Adwitiya Pal as a graduate student CSIR-JRF (M. Sc from Burdwan University, WB).
Nov, 2018 : The group welcomes Mr. Krishna Mohan Das as a graduate student UGC-JRF (M. Sc from IIT Madras).
Feb, 2018 : The group welcomes Ms. Manisha Karmakar as a graduate student (M. Sc from Visva-bharati University, WB).
8. Congratulations!!! to Manisha and Sushil for the paper accepted in Inorganic Chemistry, 2020, 59, 4493-4507 (I.F 4.85)
7. Congratulations!!! to Sushil and Adwitiya for the paper accepted in Inorganica Chemica Acta 2019, 498, 119097 (I.F 2.44)
6. Congratulations!!! to Sushil for the paper accepted in Dalton Transaction 2019, 48, 8209-8220 (I.F 4.05)
5. Congratulations!!! to Sushil for the paper accepted in Sensors and Actuators B: Chemical 2018, 267, 617-627 (I.F 6.39)
4. Congratulations!!! to Sushil for the paper accepted in Inorg. Chem. 56, 2017, 11577-11590 (I.F 4.85)
3. Congratulations!!! to Sushil for your paper accepted in Organometallics 2017, 36, 2141-2152 (I.F 3.86)
2. Congratulations!!! to Sushil for your paper accepted in Organometallics 2017, 36, 829-838 (I.F 3.86)
1. Congratulatons!!! to our group our group for paper accepted in Coordination Chemistry Review 2016, 329, 16- (I.F 13.0 )
My research mainly focused on synthetic organometallic chemistry, we concentrates mainly on the following aspects,
(i) Synthesis of organoborane compounds and their catalytic applications.
(ii) Synthesis of organometallic compound using N-heterocyclic carbene (both classical and non-classical) and cAAC and their further utilization in synthesis. These non calssical carbene could be used as a potent Lewis base for making "Frustrated Lewis pairs" (FLP) which is very reactive towards small molecules activation.
NHCs are defined as heterocyclic species containing a carbene carbon and at least one nitrogen atom within the ring structure
NHCs generally feature bulky substituents adjacent to the carbene carbon, which help to kinetically stabilize the species by sterically disfavouring dimerization to the corresponding olefin (the Wanzlick equilibrium). The electronic stabilization provided by the nitrogen atoms, however, is a much more important factor.
J. Organomet. Chem. 832, 2017, 42-46
(iii) developing Ferrocene based multi-responsive chemosensors which will be useful to detect biologically relevant cations and anions in water.
Molecular logic gates that are capable of performing Boolean logic operations in response to physical, chemical, and
biological inputs are becoming exciting trends in the forefront of research due to the increasing demands of future information
technology. Our choice of coumarin as the fluorophore arises from the fact that it possesses desirable photophysical properties such as a large Stokes shift and visible excitation and emission wavelengths. On the other hand, ferrocene is a very attractive building block for redox-active ligands (reversible redox) because of the robustness of ferrocene under aerobic conditions. Therefore, the combination of coumarin and ferrocene generates a molecular system where fluorescence can be modulated by the redox properties of ferrocene via control of the photoinduced electron transfer (PET) process. Herein, we report for the first time the synthesis and characterization of a 1,1′ unsymmetrically substituted ferrocenyl−coumarin system which represents a fluorescent “off− on” molecular switch upon oxidation of ferrocene to ferrocenium cation by Fe3+ ion.
Organometallics, 2017, 36 (4), 829–838
Iron, one of the most essential trace elements in biological systems, and one of the most abundant transition metals present in the human body, performs a vital role in cellular metabolism and in the function of hemoglobin and various enzymes, proteins, and transcriptional events. In biological systems, iron plays a vibrant role as a cofactor in various proteins because of its ferrous/ferric (Fe2+/Fe3+) states which are one of the most important redox pairs in biological systems.The species Fe2+ is generally the most soluble form of iron, but it is also very unstable, especially in solutions containing high levels of dissolved oxygen, being readily oxidized to Fe3+. Therefore, it is still a challenge to determine whether the system contains both Fe3+ and Fe2+ or either of them individually. Our ongoing research, aimed at the synthesis of new inexpensive and easy-to-make optical and electrochemical sensors of biologically and/or chemically important ions, leads us to explore unprecedented examples of a couple of simple ferrocene-based sensor molecules which can detect and differentiate both the oxidation states (+2/+3) of iron electrochemically as well as colorimetrically with a very low limit of detection in aqueous media.
Organometallics, 2017, 36 (11), 2141–2152
The use of fluorescence signals in logic gates has become a focus of extensive research interest because of their many advantages such as high sensitivity, rapid response, low background, and the capability of doing recognition in a nondestructive manner. Hg2+ ion is well-known for quenching the fluorescence of fluorophores via a spin−orbit coupling and/or energy transfer mechanism. Therefore, the design and synthesis of new “turn-on” fluorescent probes for Hg2+ ion based on novel interaction mechanisms between recognition and signal-reporting units is still an active research field. A variety of different signaling mechanisms, including PET, MLCT, ICT, excimer/exciplex formation, ESPT, and FRET, etc., have been developed and extensively applied for the optical detection of different species to date. Among these sensing mechanisms, the C=N isomerization process has been developed recently. In the present work, we have developed triazole- and iminetethered aminonaphtholat−ferrocene conjugate as a potential fluorescent sensing molecule for Hg2+ ion. The two parts are linked by a triazole ring, a versatile recognition unit especially for transition metal cations, and by a C=N bond.
Inorg. Chem., 2017, 56 (19), 11577–11590
34. Ferrocene Appended Fluorescein-Based Ratiomeric Fluorescence and Electrochemical
Chemosensor for Fe3+ and Hg2+ Ions in Aqueous Media: Application in Real Samples Analysis.
Sushil Ranjan Bhatta, Adwitiya Pal, Ujwal K. sarangi, Arunabha Thakur*
Inorganica Chimica Acta, 2019, 498, 119097-119107 (IF 2.433)
33. Metal-Coordination Driven Intramolecular Twisting: A Turn-On Fluorescent-Redox Probe for Hg2+ Ion through Interaction of Ferrocene Nonbonding Orbital and Dibenzylidenehydrazine
Sushil Ranjan Bhatta, Bijan Mondal, Sudhir Lima, Arunabha Thakur*
Dalton Trans. 2019, 48, 8209-8220 (IF 4.099)
32. Triazole Based 8-Formyl Coumarin-Glycine conjugate: A Specific Turn-On Fluorescent Probe
for Cu(II) ion.
Sushil Ranjan Bhatta, Sudipa Bhattacharya, Bappaditya Goswami,
J. Indian Chem. Soc. 2018, 95, 1517-1524 (Invited Article)
31. Naphthalene-Glycine Conjugate: An Extremely Selective Colorimetric Chemosensor for
Iodide Ion in Aqueous Solution.
ArunabhaThakur*, Sushil Ranjan Bhatta, Bijan Mondal, Deepak Kakash, Piyush Chawla
Sensors and Actuators B: Chemical 2018, 267, 617-626 (IF 5.667)
30. ICT-Isomerization Induced Turn-On Fluorescence Probe with a Large Emission
Shift for Mercury Ion: Application in Combinational Molecular Logic.
Sushil Ranjan Bhatta, Bijan Mondal, Gonela Vijaykumar,
Inorg. Chem. 2017, 56, 11577-11590 (IF 4.70)
29. An Efficient Molecular Tool with Ferrocene Backbone: Discriminating Fe3+ from
Fe2+ in Aqueous Media.
Sushil Ranjan Bhatta, Varun Bheemireddy, Gonela Vijaykumar, Sashi Debnath,
Organometallics 2017, 36, 2141-2152 (IF 3.862)
28. A Redox-Driven Fluorescence ‘Off-On’ Molecular Switch Based on a 1,1′-Unsymmetrically Substituted bi-Ferrocenyl Coumarin System: Mimicking Combinational Logic Operation.
Sushil Ranjan Bhatta, Varun Bheemireddy, Arunabha Thakur*
Organometallics 2017, 36, 829-838 (IF 3.862)
27. Access to an Abnormal Position of N-heterocyclic Carbene-Mn(II)-Complex by
Pyrazolyl Phosphane with a Labile P-N Bond.
Arunabha Thakur*, Varun Bheemireddy, Sushil Ranjan Bhatta
J. Organomet. Chem, 2017, 832, 42-46 (IF 2.17)
26. Recent Development in Azolyl Phosphane Containing a Free N Atom in the Azole
Ring as an Additional Reaction Site.
Arunabha Thakur*, D. Mandal
Coordination Chemistry Review, 2016, 329, 16-52 (IF 13.0)
25. Triazole appended mono and 1,1′ di-substituted ferrocene-naphthalene conjugates:
highly selective and sensitive multi-responsive probes for Hg (II)
Sushil Ranjan Bhatta, Varun Bheemireddy, Vijay Kumar Gonela, Arunabha Thakur*,
Sensors and Actuators B: Chemical 2017, 240, 640-650 (IF 5.66)
24. Investigation of reaction of B(C6F5)3 with abnormal N-heterocyclic carbene
and cyclic alkyl amino carbene in presence and absence of water
Arunabha Thakur*, P. K. Vardhanapu, Vijay Kumar Gonela, Sushil Ranjan Bhatta
J. Chem. Sci. 2016, 128, 613-620. (IF 1.2)
23. Abnormal N-Heterocyclic Carbene Mediated Fixation of CO2, N2O and Activation
of Tetrahydrofuran and Tetrahydro-thiophene under Ambient Condition
Arunabha Thakur*, Pavan K. Vardhanapu, Gonela Vijay Kumar, Pradip Kumar Hota,
and Swadhin Kumar Mandal*
Eur. J. Inog. Chem. 2016, 913-920. (IF 2.94)
22. A novel and unprecedented ferrocene-quinoline conjugate: facile proton conduction
via 1D helical water chains and highly sensitiveand selective chemosensor for Zn(II)
ion in water
Joseph Ponniah S, Subrat Kumar Barik, Arunabha Thakur, and Sundargopal Ghosh
RSC Advances, 2015, 5, 15690
21. Triazolyl Alkoxy Fischer Carbene Complexes in Conjugation with Ferrocene/Pyrene as
Sensory Units: Multifunctional Chemosensor for Pb(II) and Zn(II) Ions
Joseph Ponniah S, Subrat Kumar Barik, Arunabha Thakur, R. Ganeshamoorthy and S. Ghosh
Organometallics, 2014, 33, 3096–3107
20. Synthesis of triazole linked fluorescent amino acid and carbohydrate bio-conjugates: a highly sensitive and skeleton selective multi-responsive chemosensor for Cu(ii) and Pb(ii)/Hg(ii) ions
Arunabha Thakur, D. Mandal, P. Deb, B. Mondal and S. Ghosh
RSC Advances, 2014, 4, 1918-1928
19. A Novel Triple Decker Sandwich Complex Containing Cyclo Six Member B3Co2 Te Ring as a Middle Deck
Arunabha Thakur, K. K. V. Chakrahari, B. Mandal and S. Ghosh
Inorg. Chem., 2013, 52, 2262
18. B-H Bond Iodination of Polyhedral Dimolybdaborane and Dimolybdathiaborane Clusters
K. K. V. Chakrahari, Arunabha Thakur, V. P. Anju and S. Ghosh,
J. Organomet. Chem, 2013, 751, 321
17. Hypoelectronic Dimetallaheteroboranes of Group 6 Transition Metals Containing Heavier Chalcogen Elements
K. K. V. Chakrahari, Arunabha Thakur, B. Mandal and S. Ghosh,
Inorg. Chem., 2013, 52, 7923-32
16. Synthesis and Sensing Properties of 1,1′-Disubstituted Unsymmetrical Ferrocene-Triazole Derivatives: A Multichannel Probe for Hg(II) Ion
D. Mandal, P. Deb, B. Mondal, Arunabha Thakur, J. Ponniah and S. Ghosh
RSC Advances, 2013, 3, 18614
15. An Highly Selective and Sensitive Redox, Fluorescence and Optical Probe for Pb(II) Ion in Aqueous Environment
Arunabha Thakur, D. Mandal and S. Ghosh,
Anal. Chem., 2013, 85, 1665
14. A Triazole Based Triferrocene Derivative as a Multiresponsive Chemosensor for Hg(II) and a Redox Chemosensor for H2PO4- Ion in Aqueous Environment
Arunabha Thakur, D. Mandal and S. Ghosh,
J. Organomet. Chem. 2013, 726, 71
13. A triazole tethered triferrocene derivative as a selective chemosensor for mercury(II) in aqueous environment
D. Mandal, Arunabha Thakur, S. Ghosh
Polyhedron, 2013, 52, 1109
12. N-phenyl pyrrole anchored to Fischer carbene complex through ring closing metathesis oxidative aromatization: synthesis and characterization of aryl substituted Fischer carbene complexes
R. Ganesamoorthi, Arunabha Thakur, D. Sharmila, V. Ramkumar and S. Ghosh
J. Organomet. Chem, 2013, 726, 56
11. A Novel Class of Heterometallic Cubane and Boride Clusters Containing Heavier Group 16 Elements
Arunabha Thakur, S. Sao, V. Ramkumar, S. Ghosh,
Inorg. Chem. 2012, 51, 8322-8330
10. Theoretical and Experimental Investigations on Hypoelectronic Heterodimetallaboranes of Group 6 Transition Metals
B. S. Krishnamoorthy, Arunabha Thakur, K. K. V. Chakrahari, S. K. Bose, P. Hamon, T. Roisnel, S. Kahlal, S. Ghosh and J.-F. Halet
Inorg. Chem. 2012, 51, 10375
9. An Efficient Ferrocene Derivative as A Chromogenic, Optical and Electrochemical Receptor for Selective Recognition of Hg(II) in Aqueous Environment
Arunabha Thakur and S. Ghosh
Organometallics 2012, 31, 819
8. A Close Packed Boron Rich 11-Vertex Molybdaborane with Novel Geometry
K.K.V. Chakrahari, Arunabha Thakur, B. Mondal, R. S. Dhayal, S. Ghosh
J. Organomet. Chem, 2012, 710, 3627
7. A Homometallic Tricapped Cubane Cluster: [(Cp*Mo)4B4H4(μ4-BH)3] (Cp* = η5-C5Me5)
Arunabha Thakur, S. Sahoo, S. Ghosh
Inorg. Chem., 2011, 50, 7940-7942
6. Catecholboryl-Functionalized Ferrocene Based Lewis Acid System: A Selective Probe for Fluoride Ion through Multiple Channels
Arunabha Thakur, D. Mandal, S. Sao, S. Ghosh
J. Organomet. Chem., 2012, 715, 129
5. Click-Generated Triazole Based Ferrocene-Carbohydrate Bioconjugates: A Highly Selective Multisignaling Probe for Cu(II) Ions.
Arunabha Thakur, S. Sardar, S. Ghosh
J. Chem. Sci., 2012, 124, 1255
4. Aqueous Organometallic Chemistry: Synthesis and Characterization of γ, δ Unsaturated Alkynyl Substituted Fischer Carbene Complexes of Group 6 Transition Metal
R. Ganesamoorthi, Arunabha Thakur, S. Ghosh
Curr. Sci., 2011, 101, 1347
3. A Highly Selective Redox, Chromogenic and Fluorescent Chemosensor for Hg2+ in Aqueous Solution Based on Ferrocene- Glycine Bioconjugates
Arunabha Thakur, S. Sardar, S. Ghosh
Inorg. Chem., 2011, 50, 7066-7073
2. Synthesis of Mono and Doubly Alkynyl Substituted Ferrocene and its Crystal Engineering Using –
C–H....O Supramolecular Synthon
Arunabha Thakur, N. N. Adarsh, A. Chakraborty, M. Devi, S. Ghosh
J. Organomet. Chem., 2010, 695, 1059-1064
1. A New Synthetic Route to Lindqvist Type Clusters [(n-Bu4N)x][M’M5O19] [when x = 2, M’ = M = Mo or W; x = 3, M’ = Mo, M = W] From Metal Carbonyl Precursors [(CO)5ML] [M = Mo, W; L = CO, C(OMe) (Me)]
Arunabha Thakur, A. Chakraborty, V. Ramkumar, S. Ghosh
Dalton Trans., 2009, 7552-7555
Ph.D. and Postdoctoral work
35. Oxidation Induced Differentially Selective Turn-On Fluorescence via PET Based on Ferrocene Appended Coumarin-Quinoline Platform: Application in
Cascaded Molecular Logic
Manisha Karmakar, Sushil Ranjan Bhatta, Santanabha Giri, Arunabha Thakur*
Inorg. Chem. 2020, 59, 4493-4507 (IF 4.85)
1. Mr. Sushil Ranjan Bhatta (since July, 2015)
M.Sc. (Berhampur University, Odisha)
2) Ms. Manisha Karmakar (Since Feb, 2018)
M. Sc. (Visva-bharati University, WB)
3) Mr. Krishna Mohan Das (Since Nov, 2018)
M. Sc. (IIT Madras), CSIR-JRF (AIR-32)
4) Ms. Adwitiya Pal (Since Dec, 2018)
M. Sc. (Burdwan University), CSIR-JRF (AIR-50)
Sreejit Ghosh (Since April, 2019)
M. Sc. (Delhi University)
Present M.Sc. students
1. Deepak Bhuyan
2. Sourav Ghosh
Former M.Sc. students
3. Rituraj Mukherjee
4. Swagatalakshmi Chakraborty
1. Deepak Kakash
2. Rajendra Kumar Meena
Former Project and Summer Inturn Students
5. Ms. Sudipa Bhattacharya
Gour Banga University, WB
4. Abhisek Chakrabarty University Of Calcutta, WB
3. Arnab Goswami Jadavpur University, WB
2. Soumya Ranjan Nayak
Vikram Deb Autonomous college, Jeypore, Odisha
1. Chandini Pradhan
Vikram Deb Autonomous college, Jeypore, Odisha
Dr. Arunabha Thakur
Department of Chemistry,
P.G. Science Building
Phone (Cell) : (+91) 9937760940